Realme Buds Air 3 Troubleshooting Manual

1. Product Positions and Cleaning Tools

This section details the components of the Realme Buds Air 3 and the tools recommended for cleaning.

• Key Components: Indicator light, key switch, left earphone, right earphone, FF MIC, touch antenna, BT antenna, mainboard, charging pad, speaker, battery, Type-C port, Hall sensor, Pogo-Pins.
• Cleaning Tools: Tweezers, cotton swabs, electric torch, ethyl alcohol.

2. Appearance Confirmation and Troubleshooting

This section outlines common external issues and their troubleshooting steps.

2.1 Charging Box Appearance Issues

• 2.1.1 USB Interface Blocked by Foreign Matter: Clean with tweezers and cotton swabs, using alcohol if necessary. Check with a light source. If unremovable, contact after-sales service. Responsibility: Customer (improper usage).
• 2.1.2 USB Interface Rusted or Corroded: Clean with cotton swabs and tissue, using alcohol if needed. If rust is removable, the device is usable. If not, contact after-sales service. Responsibility: Customer (improper usage).
• 2.1.3 USB Interface Damaged: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.1.4 Liquid in USB Interface: Wipe with cotton swabs or tissue, using alcohol if difficult. If liquid is removable, the device is usable. If not, contact after-sales service. Responsibility: Customer (improper usage).
• 2.1.5 Indicator Light Damaged or Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.2.1 Key Switch Damaged or Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.2.2 Key Switch Jammed: Gently pry with tweezers or fine needles. Press the button again to check. If still stuck, contact after-sales service. Responsibility: Customer (improper usage).
• 2.2.3 Key Switch Swaying: If it does not affect normal use, continue using or contact after-sales service for replacement. Responsibility: Customer (improper usage, e.g., dropping).
• 2.3.1 Charging Box Stuck When Opening Cover: Open and close the cover repeatedly. If the issue persists, contact after-sales service. Responsibility: Customer (improper usage, e.g., dropping, excessive force).
• 2.3.2 Top Cover Swaying: Cannot be repaired. Contact after-sales service for replacement. Responsibility: Customer (improper usage, e.g., dropping, excessive force).
• 2.4.1 Pogo Pin Foreign Matter or Corrosion: Corrosion cannot be repaired; contact after-sales service. Foreign matter can be cleaned with cotton swabs and light. Responsibility: Customer (improper usage, e.g., foreign matter, sweat corrosion).
• 2.4.2 Pogo Pin Stuck: Cannot be repaired. Check earphone insertion and indicator light. Clean and test pogo pins with cotton swabs. Responsibility: Customer (improper usage, e.g., foreign matter, sweat corrosion).
• 2.5.1 SPK Hole Blocked: Clean with tweezers, cotton swabs, and other tools. If foreign matter is removable, the device is usable. If not, contact after-sales service. Responsibility: Customer (improper usage).
• 2.5.2 SPK Hole Deformation/Damage/Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.5.3 Sound Hole or Frustrated Hole Blocked: Clean with tweezers and cotton swabs. If foreign matter is removable, the device is usable. Responsibility: Customer (improper usage).
• 2.5.4 Sound Hole and Frustrated Hole Deformation/Damage/Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.5.5 Mic Hole Stuck: Clean with tweezers, cotton swabs, and other tools. If foreign matter is removable, the device is usable. Responsibility: Customer (improper usage).
• 2.5.6 Mic Hole Deformation/Damage/Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.5.7 Liquid in Earphone Charging PAD: Wipe with cotton swabs or tissue. If liquid is removable, the device is usable. If not, contact after-sales service. Responsibility: Customer (improper usage).
• 2.5.8 Charging PAD Deformation/Damage/Missing: Do not attempt repair. Contact after-sales service for replacement. Responsibility: Customer (improper usage).
• 2.5.9 Charging PAD Dirty/Corrosion: Scrub with cotton swabs/tissue, use alcohol if needed. If dirt/corrosion cannot be removed, contact after-sales service. Responsibility: Customer (improper usage).
• 2.5.10 Structural Swaying (Ear Cavity and Earbud Shake): Cannot be repaired. Contact after-sales service for replacement. Responsibility: Customer (improper usage, e.g., dropping).

3. Function Test

3.1 Check Charging Box Power:

• Ensure the earphone PAD and pogo pins are clean.
• Open the box: Red light flashes if power ≤ 20%, green light flashes if power > 20%.
• If the indicator light is off, charge the box for at least 1 hour.
• If the indicator light still doesn't work after charging, confirm with the user about liquid inflow, dropping, or extrusion. If none, test with a known good box to check the earphone.

3.2 Confirm Charging Box Function:

• Requires a charged box, normal earphones, and the realme Link app.
• Steps: Open box (light on for 10s, then 3s), test with normal left earphone, test with normal right earphone. Check key switch function (long press 3s for pairing).
• Problem Judgment: If normal earphones connect correctly, the box is functional. If not, or if button function is invalid, confirm user history (liquid inflow, dropping, extrusion).

3.3 Check Defective Earphone Function:

• Requires a normal box with power and the defective earphone.
• Steps: Place faulty left earphone in normal box, check indicator light. Place faulty right earphone in normal box, check indicator light. If light is off, charge for 20 minutes and re-test.
• Problem Determination: If an earphone isn't identified after charging, it may have a dead fault. Confirm user history (inflow, dropping, extrusion).

3.4 Use realme Link App to Test Earphone Function:

• Requires realme Link app installed on a mobile device.
• Steps: Long press pairing button (3s) for Bluetooth pairing (realme Buds Air 3). Open app to view power status. If only one ear connects, reset by holding pairing button (10s) to re-form team.
• Problem Determination: If connection fails after multiple attempts or only one ear connects, the earphone may have a functional problem. Confirm user history.

3.5 Listening Test (L&R Earphone):

• Connect both ears to the mobile phone.
• Steps: Pair phone with earbuds. Play music. Listen for normal sound in both left and right earphones.
• Judgment: Both ears sound normally; only one ear sounds (abnormal speaker); no sound (abnormal speaker). Confirm user history for abnormal earphones.

3.6.1 Touch and Ear Detection Test:

• Requires headset connected to mobile phone.
• Steps: Wear both earphones. Long press one earbud to switch ANC modes. Remove one earphone to check if music pauses, then reinsert to check resume.
• Note: Ear detection can be enabled/disabled in realme Link app. If slow or misidentifying, remove earbuds, hold for 3 seconds, place in box, close cover, and reconnect.
• Responsibility Judgment: If ear detection or touch function is abnormal, confirm user history (inflow, falling, extrusion).

3.7.1 MIC Test (L&R Earphone, Communication Test):

• Requires earphones connected to mobile phone.
• Steps: Connect and wear earphones. Make a call. Confirm voice output and if the other person can hear.
• Responsibility Judgment: If MIC function is abnormal, confirm user history (inflow, falling, extrusion).